Draft-equalizer



(No Model.)

B. L. PRESTHOLDT. DRAFT EQUALIZER.

No. 433,579. PatentedAug. 5, 1890,

UNITED STATES PATENT ()FFICE.

ROBERT L. PRESTI-IOLDT, OF OERRO GORDO, MINNESOTA.

D RAFT- EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 433,579, dated August 5, 1890. Application filed May 26, 1890- Serial No. 353.241" (No model.)

.To all whom it may concern.-

Be it known that I, ROBERT L. PRESTHOLDT, a citizen of the United States, residing at Cerro Gordo, in the county of Lac-qui-Parle and State of Minnesota, have invented certain new and useful Improvements in Draft-Equalizers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has relation to an improvement in draft-equalizers to be used upon binders or reapers with from two to four horses; and the novelty will be fully understood from the following description and claims when taken in connectionwith the accompanying drawings, in which- Figure l is a perspective view of my improved device, and Fig. 2 is a sectional detail view taken in the plane indicated by the dotted line x 00 on Fig. 1.

Referring by letter to the said drawings, A indicates the pole or tongue of a binder or reaper.

B indicates a cross-bar, which is pivoted near the rear end of the beam Aby means of a bolt a and a strap 17, which latter has one end secured to said beam. This cross-bar B is provided at its opposite ends witha pinrality of perforations for the adjustable attachment of links, as will be presently explained, and the said bar is also provided at a sufficient distance from its center with perforations for the reception of clevis-bolts 0, whereby the clevises U are connected with a staple or eye cl, secured to the beam A, by means of chains D. It will thus be seen that the cross-bar B, which is pivoted upon the beam A,will be stayed in its pivotal movements by means of these chains D, and thereby prevented from any undue strain.

E indicates a lateral lever, which carries at its inner end metallic straps c, the lower one of which is of an angular form, and both are provided at corresponding points with perforations to receive a bolt f, whereby said lever is pivoted to the beam or tongue A. This lever E is also provided at a point intermediate .of its length with a plurality of perforations,

whereby it may be connected adj ustably by a link F with one end of the crossbar B, and

said lever is furthermore provided at its outer end with a perforation g to receive a clevis for the attachment of a whiiiletree, and it is also provided with a perforation for the attachment of a clevis G to receive awhiffletree, from which three horses may be attached. The straps or links F for connecting the rear pivoted cross-bar B with the forward. levers have their rear ends forked to straddle said cross-bar, and also provided with a series of perforations for the adjustable connection therewith.

II indicates a lever, which is connected at one end to the lever E by means of an angular elevated bracket h, and its opposite end is connected with one end of the cross-bar B by one of the links or arms F. This lever H is also connected at an intermediate point by meansof a link I with a sliding whiffletree K. The whiffletree K has its opposite end provided with perforations for the attachment of the draft, and has depending from its central portion a yoke L, which encircles the pole or beam A, and is sufficiently large to permit a vibratory movement upon said beam, as well as allowing a sliding movement back and forth. With a device of this character I may use from two to four horses in the draft, and the off-team can be used to turn the binder to which it is attached. The pivot-pins connecting the arms or brackets with the pivoted levers are readily removable, so that they may be easily withdrawn in adjusting the parts for the force of draft employed.

Having described my in vention,what I claim 1. In a draft-equalizer, the combination, with the tongue or pole, of the cross-bar pivoted to the rear portion thereof and carrying perforations in its opposite ends, the eye or staple secured to the pole in advance of the cross-bar, and the chain and clevises securing said crossbar to the pole at opposite sides of its pivotal point, substantiallyas specified.

2. In a draft-equalizer, the combination, with a tongue or pole, of a cross-bar pivoted thereto and carrying perforations at its opposite ends, the links or arms having their rear ends provided with a plurality of perforations and connected with the cross-bar, the lateral lever pivoted at its inner end to the beam and pivotally connected at an intermediate point with the cross-bar, the lever pivoted at one end upon the lateral lever and connected at its opposite end with one end of the crossbar, and a sliding lever or Whifiletree carrying a yoke encircling the beam and connected with the lever pivoted on the lateral lever, substantially as specified.

'3. The combination, With the draft beamor pole, of the lateral lever pivoted at one end thereto, the lever pivoted at one end uponthe lateral lever, a Whifiletree having a yoke embracing the draft-beam and capable of longisubstantially as specified.

In' testimony whereof I aflix my signature in presence of two Witnesses.

ROBERT L. PRESTHOLDT.

Witnesses:

A. I. AMUNDSON, J. O. HARGLAND. 

